Decorative lock cover



FIG. 1 is a perspective view of a decoration lock cover showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The rear view is not part of the claimed design. The broken line showing is for illustrative purposes only any forms no part of the claimed design. 

CLAIM The ornamental design for a decoration lock cover, as shown and described. 